What Is Mu? | Glossary Of Online Controlled Experiments.

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What does "Mu" mean?

Definition of Mu in the context of A/B testing (online controlled experiments).

What is Mu?

In statistics and probability theory the Greek small letter mu μ is used to denote a population mean or expected value. For example, the expected value of the mean under the null hypothesis would be denoted by μ0 while the expected value of the alternative hypothesis will be denoted by μ1. The observed value of mu will be simply μ.

Like this glossary entry? For an in-depth and comprehensive reading on A/B testing stats, check out the book "Statistical Methods in Online A/B Testing" by the author of this glossary, Georgi Georgiev.

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About the author

Georgi Z. Georgiev

Georgi has over twenty years of experience in online marketing, web analytics, statistics, and design of business experiments.

Author of the book "Statistical Methods in Online A/B Testing", white papers on statistical analysis of A/B tests, and a speaker, he has been distinguished as a winner in the Data & Analytics category of the 2024 Experimentation Thought Leadership Awards.

Statistical Methods in Online A/B Testing

Take your A/B testing program to the next level with the most comprehensive book on user testing statistics in e-commerce.

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